1.1.1
Be aware that cystic fibrosis can be diagnosed based on:
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positive test results in people with no symptoms, for example infant screening (blood spot immunoreactive trypsin test) followed by sweat and gene tests for confirmation or
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clinical manifestations, supported by sweat or gene test results for confirmation or
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clinical manifestations alone, in the rare case of people with symptoms who have normal sweat or gene test results.